Black dots -> compressions (C,c,+,U,u)
White dots -> dilatations (D,d,-)
Green dot  -> T-axis
Red dot    -> P-axis

  sta  chan net loc pol a/m   azi   dist author    irsta
  BUL   ???  IR      c     254.71  36.26 ISC       BUL  
  LSZ   ???  IR      -     262.87  36.60 ISC       LSZ  
  SLR   ???  IR      +     245.56  37.31 ISC       SLR  
  SHL   ???  IR      d      32.91  46.53 ISC       SHL  
  BNG   ???  IR      -     287.68  50.44 ISC       BNG  
  BKR   ???  IR      -     340.48  59.01 ISC       BKR  
  SEM   ???  IR      -      10.00  65.12 ISC       SEM  
  WRA   ???  IR      -     105.79  65.32 ISC       WRA  
  UKR   ???  IR      -      12.83  66.50 ISC       UKR  
  ELT   ???  IR      -      12.86  68.99 ISC       ELT  
  SSR   ???  IR      -     328.30  70.82 ISC       SSR  
  CTA   ???  IR      +     107.61  76.39 ISC       CTA  
  CTAO  ???  IR      +     107.61  76.39 ISC       CTAO 
  TUP   ???  IR      -      28.51  81.83 ISC       TUP  

sta    - Station code (FDSN)
chan   - channel code
net    - Network code (FDSN)
loc    - Location code (FDSN)
pol    - Polarity
a/m    - Automatic or manual pick
azi    - Event to station azimuth (in degrees)
dist   - Event to station distance (in degrees)
author - Author of the polarity
irsta  - International registry station code